It is proven in the paper that the chosen topic is relevant due to the impact of China and the EU on the negotiations about the regulation of the Iranian nuclear program’s issue. In the article, it is done a comparative analysis of the policy of the EU and China regarding the regulation of the Iranian nuclear program’s problem. It is also mentioned in the paper that since the time of the US presidential administration of Donald Trump, the EU and China have been seen as valuable actors in resolving the Iranian nuclear program’s issue. For this reason, the main purpose of the work is a review of the influence that China’s and EU’s policies regarding the development of the nuclear program of the Islamic Republic of Iran (IRI) exert on European security. The history of China-Iran relations in the nuclear sphere and the important role of China in the development of the Iranian nuclear program is mentioned in the paper. It is also noted that the fact that the EU countries are partners or allies of the United States, which is the main rival of the IRI, has complicated the dialogue between the European Union and Iran. It is shown in the paper that during Mahmud Ahmadinejad’s presidency, the Iranian nuclear program was not controlled by the international community, and because of that China supported sanctions of the UN Security Council against Iran.
As it is mentioned in the article, until the end of the 2000s, the EU, as well as the People’s Republic of China (PRC), did not support the US policy toward Iran. The Iranian-Chinese relations in the nuclear field were studied. It is mentioned that despite the fact that China is interested in exporting Iranian energy resources, Beijing will never accept Iran’s possession of nuclear weapons. It is assumed that the fact that China does not support the nuclear weapons status of Iran gives it the opportunity to cooperate with the EU in case Iran decides to acquire nuclear weapons. It is noticed that China had a major impact on the negotiations related to signing the Joint Comprehensive Plan of Action (JCPOA), i. e. the nuclear agreement with Iran. The further actions of the EU and the PRC after the dissolution of the JCPOA are mentioned in the paper. The scenarios of further development of the situation around the Iranian nuclear program were reviewed. As a result of the research, it is concluded that China and the EU have played a significant role in achieving the JCPOA and conducting diplomatic negotiations with Iran. The strengthening of Beijing’s role as a key partner of Teheran and the decrease of the EU’s impact on Iran’s foreign policy were mentioned in the paper.